nsDOMTextEvent.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- *//* vim: set ts=2 sw=2 et tw=78: *//* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Ilya Konstantinov (mozilla-code@future.shiny.co.il) * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */#include "nsDOMTextEvent.h"#include "nsContentUtils.h"#include "nsPrivateTextRange.h"
nsDOMTextEvent::nsDOMTextEvent(nsPresContext* aPresContext,
nsTextEvent* aEvent)
: nsDOMUIEvent(aPresContext, aEvent ? aEvent :
new nsTextEvent(PR_FALSE, 0, nsnull))
{
NS_ASSERTION(mEvent->eventStructType == NS_TEXT_EVENT, "event type mismatch");
if (aEvent) {
mEventIsInternal = PR_FALSE;
}
else {
mEventIsInternal = PR_TRUE;
mEvent->time = PR_Now();
}
//// extract the IME composition string//
nsTextEvent *te = NS_STATIC_CAST(nsTextEvent*, mEvent);
mText = te->theText;
//// build the range list -- ranges need to be DOM-ified since the// IME transaction will hold a ref, the widget representation// isn't persistent//
nsIPrivateTextRange** tempTextRangeList = new nsIPrivateTextRange*[te->rangeCount];
if (tempTextRangeList) {
PRUint16 i;
for(i = 0; i < te->rangeCount; i++) {
nsPrivateTextRange* tempPrivateTextRange = new
nsPrivateTextRange(te->rangeArray[i].mStartOffset,
te->rangeArray[i].mEndOffset,
te->rangeArray[i].mRangeType);
if (tempPrivateTextRange) {
NS_ADDREF(tempPrivateTextRange);
tempTextRangeList[i] = (nsIPrivateTextRange*)tempPrivateTextRange;
}
}
}
// We need to create mTextRange even rangeCount is 0. // If rangeCount is 0, mac carbon will return 0 for new and// tempTextRangeList will be null. but we should still create// mTextRange, otherwise, we will crash it later when some code// call GetInputRange and AddRef to the result
mTextRange = new nsPrivateTextRangeList(te->rangeCount ,tempTextRangeList);
}
NS_IMPL_ADDREF_INHERITED(nsDOMTextEvent, nsDOMUIEvent)
NS_IMPL_RELEASE_INHERITED(nsDOMTextEvent, nsDOMUIEvent)
NS_INTERFACE_MAP_BEGIN(nsDOMTextEvent)
NS_INTERFACE_MAP_ENTRY(nsIPrivateTextEvent)
NS_INTERFACE_MAP_END_INHERITING(nsDOMUIEvent)
NS_METHOD nsDOMTextEvent::GetText(nsString& aText)
{
aText = mText;
return NS_OK;
}
NS_METHOD nsDOMTextEvent::GetInputRange(nsIPrivateTextRangeList** aInputRange)
{
if (mEvent->message == NS_TEXT_TEXT)
{
*aInputRange = mTextRange;
return NS_OK;
}
aInputRange = 0;
return NS_ERROR_FAILURE;
}
NS_METHOD nsDOMTextEvent::GetEventReply(nsTextEventReply** aReply)
{
if (mEvent->message == NS_TEXT_TEXT)
{
*aReply = &(NS_STATIC_CAST(nsTextEvent*, mEvent)->theReply);
return NS_OK;
}
aReply = 0;
return NS_ERROR_FAILURE;
}
nsresult NS_NewDOMTextEvent(nsIDOMEvent** aInstancePtrResult,
nsPresContext* aPresContext,
nsTextEvent *aEvent)
{
nsDOMTextEvent* it = new nsDOMTextEvent(aPresContext, aEvent);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
return CallQueryInterface(it, aInstancePtrResult);
}